suffered from c.t.e., a degenerative brain illness. the n.f.l. already faces scores of suits over player concussions. notre dame star linebacker manti te'o now says he kept saying he'd had an online girlfriend, after learning she did not exist. in an interview, te'o told abc's katie couric that he thought lennay kekua had died in september. instead, he said, he found out it was all a hoax, just days before the heisman trophy announcement. >> katie, put yourself in my situation. this girl, who i committed myself to, died on september 12. now i get a phone call on december 6, saying that she's alive, and then i'm going to be put on national tv two days later, and they ask me about the same questions. you know, what would you do? >> sreenivasan: te'o ultimately did not win the heisman, but he did answer questions about his girlfriend, without ever saying there'd been a hoax. today, he insisted he played no part in the hoax. wall street climbed again today, based partly on strong earnings at google and i.b.m.